If an error occurs during the rollback, the operation is paused and the base virtual disk and snapshot virtual disk displays Needs Attention icons. The RAID controller module also logs the event to the Major Event Log (MEL). Follow the Recovery Guru procedure to correct the error and repeat the rollback operation.

WARNING: Risk of data loss: If you cancel a snapshot rollback in progress, the base virtual disk may remain in an unusable state and the snapshot virtual disk is displayed as failed in the MD storage management software. Therefore, do not cancel a snapshot rollback unless reliable recovery options exist for restoring the content of the base virtual disk.

Command Line Options

Optionally, you also can use the command line interface (CLI) to start, cancel, resume or modify priority of a snapshot rollback. For more information, see the CLI Guide.

Protecting Against a Failed Snapshot Rollback

To protect your base virtual disk data, it is recommended that you create a new snapshot virtual disk from the base virtual disk before beginning a rollback operation. If the snapshot rollback fails, use this new snapshot virtual disk to restore your base virtual disk.

Previous Versions of the MD Storage Manager

Snapshot virtual disks created using previous versions of MD Storage Manager that did not support snapshot rollback do not have to be recreated or changed to be used in a subsequent rollback operation. Once the latest versions of the MD storage management software and RAID controller module firmware are installed, snapshot virtual disks created under previous versions support the snapshot rollback feature. However, if you revert to an older version of the MD storage management software after you have performed a snapshot rollback, the older MD storage management software does not support the snapshot virtual disk.

Starting a Snapshot Rollback

To start a snapshot rollback:

1In the array management window, select the Logical tab.

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Configuration: Premium Feature—Snapshot Virtual Disks

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MD3620F, MD3600f specifications

Dell's MD3620F and MD3600F storage arrays are designed for businesses seeking dependable, high-performance storage solutions tailored to meet the demands of modern data management. These models offer a blend of scalability, efficiency, and advanced features, making them well-suited for a range of applications, from virtual environments to critical database operations.

One of the primary features of the MD3620F and MD3600F is their support for a hybrid storage architecture. This approach allows organizations to combine flash storage with traditional hard disk drives (HDDs) to optimize performance and cost. The MD3620F focuses heavily on all-flash configurations, delivering exceptional speed and lower latency, ideal for I/O-intensive workloads.

Scalability is another hallmark of these storage solutions. The MD3600F allows users to scale up to 120 drives, providing robust capacity to meet growing data needs. The MD3620F is engineered for environments where data availability and speed are paramount, with support for high IOPS (Input/Output Operations Per Second) and consistent performance under stress.

In terms of data management, both systems integrate with Dell’s proprietary software, which enhances operational efficiency through features like automated tiering. This technology optimizes data placement between different storage types based on access frequency, ensuring that hot data is readily available while reducing costs associated with less critical data.

Reliability is crucial for businesses that depend on their storage systems. The MD3620F and MD3600F come equipped with advanced data protection mechanisms, such as RAID support, which safeguards against data loss, and snapshot capabilities that provide point-in-time copies of data. Moreover, these solutions include hot-swappable components, ensuring minimal downtime for maintenance and repairs.

Connectivity is also a strong suit of these storage arrays. They support multiple connectivity options, including SAS and iSCSI, allowing for flexible integration into existing IT infrastructures. This adaptability enhances their appeal to a wide range of enterprise environments.

In summary, the Dell MD3620F and MD3600F stand out as robust storage solutions with a combination of hybrid and all-flash configurations, scalability, advanced data management tools, and enhanced reliability features. These characteristics make them ideal for organizations looking to enhance their data storage capabilities while maintaining high performance and efficiency.
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